Carbureter.



N0. 867,604. PATENTED 001'. a, 1907. w. P. ROTHE.

GARBURETBR.

A PPLIUATION FILED SEPT. 18.1905.

lNvENToR v WILLIAM'FRQTHE. BY%W% M PATENT orrroiz.

csniarmn'rnrt.

. Specification oftl etters Patent.

Patented 'oet. 8,190 7.

Appl-ica.ticn filed September 13,1905. Serial no, i

flb. all 'whorm it may concern; l, .Be it know'n that 1, WILLIAM F. Korma, a citizen 9f the United States, and a. resident'of East St. Louis,- St. 1 Clair county, Illinois, have invented certaininewmnd] '5 useful Improvements inll arbureters, oiwhich the follow'ingjs a specificetion containing a ful1,'clea.r, and ex act description, reference being-had to the accompanyi'n'g drawings, for'ming'apart hereofi" Y My invention relates to a. carbureter, andthe object 10 .of niy inventionis to provide a simple inexpensive device for vapdrizing and 'mixingthe fluid used inthe' propulsion or gas, gasolene, and other'like engines.

Afm'ther object of my invention-is to construct a carbureter, or vaporizer, which will verythoroughly mix i and commingle the-air with the hydrocarbon, previous to its passage'into the combustion chamber. 1

I To the abovepurposes, my invention consists in certain novel features of construction and arrangement oi parts which will be hereinafter more clearly set forth,

pointed out in my claims, and illustrated in the accom -k panying drawings, in which Figure 1 a vertical section taken longitudinallyfthroug h the center of a. carburetor of my improved con- ],struction; 2 is a. front elevation of the carbureter;

Fig. 3 ice, vertical section takenjon .theline 3 -3 of -Referring by numerals to the accompanying draw- I ingsz l indicates a portion ro fjanv-engine casing to which myimproved carbureter is secured. in the construcv tion of the device as shown, the body oithe carbureter I -comprises" the hollow cylindriealrnember, 2', one end,

3, of: which is exteriorly screw threaded and enters a -c"orres'pond ingly screw h e ed aperture in the engine casing, '1. "The outer end"of;the .body, 2, is-slightly' as flared, as indicated by 4. Formed integral with the body, 2, and upon the interior thereof, isa. spiral rib, 5, thus formingla corresponding spiral passages, through .'the'body ofthe carbureter, I Seated injthetopoi the outer endof .the body, 2,.is a vertically arranged cylin- A0 'drical stem," 7 the lower end of which projects into the cylindrical body, 2;,and'being provided: with a. needle, valve discharge-aperture, s. Leading into the-chamber; in the lower endof this'stem; 7;, is an aperture, 9, with which communicates the'dischargeerrd of an' oiljinl et pipe, 10. The the stern, 7 ,is providedwith a suitabl'fglifnd', or stuflingjbox, 1&9, and passing-downwardly'therethrough and through the stem,- 7, is a valvestem, 11, the lower end of which is reduced in diameter, as indicated 12, and therebeing a needle valve, 1i,

-. formed on the end of said stem, which isadapted to enter and'close thevalve opening, 8. 'lhe lower I portion "of the valve stem, '11, just above the'reduced. lower end thereof, exteriorly screw threaded,as-'indicated' by-14; and operates a'correspondingly screw -threaded portion of the'stem, 7.; The valve stein, 1 1,-i

, is provided on itsupper endwith' a suitable handle, 15.

.Passingvertically through the lower portion of the T iro'nt oi the chamber, 2, is a screw bolt, 16', provided its upper end wi'th a pocket, or recess, 17. A nut, 18,

" located on the screw bolt, below the body, 2; serves to lock said boltdn positionaiter has been adjusted to theidesired height.

- The operationoimy improved carbureter is as follows. The h dle, 15, of the valve stem ismanipulated so as to slightly elevatethe-needl'e valve, 13, from the valve seat,/8, and, as aresult, asmall quantity oi oil will continually flow through the valve and discharge irom said aperture, 8( The ,engine, or motor," on the suction stroke of its cycle, creates the. usual vacuum; and thuscauses air to be drawn into the open end of the cylindrical body, -2, and this inrushing air carries with itthe oil, and said air and oil in traversing the spiral'passage, 6;.wi1l necessarily be given a whirling motion, which will thoroughly atomize the oil, and,

atter thus being thoroughly milked and -'commingled, it will be drawn into the-engine in a highly ble, or explosive, condition. The expansive 'power oi the mixture is controlled .by the degree to which the valve is opened, as this regulates the quantity of oil that-is discharged into the carbureterfl Should too much oil be discharged by the valve, whenfirst starting or when adjusting the valve stem, the surplus oi oil will-drop into the recess, or pocket, 17, and, if it overflows therefrom, it will travel down the thread on the exterior of the screw bolt, 16, which will allow it to be" taken freely by the rushing through the car- ,bureter'. v i I Bypro'viding a spiral rib on the interior oithe carbureter,',the air is; maintained in'the carbureter con: 'siderably longer than if an ordinary straight pipe were used,-and this, together'with the whirling motion of the air as it-passes through the spiral passage," 6, very thoroughly mixes and comminglesthe oil with the air.

-- 1 do not limit m s li m the application of the spiral mixing chamber to carbureters employed in connec-.

gas, suction producer gas, or oil gas.

as it is evident that the spiral c ambe centre tic n with hydrocarbon engines, as said chamber v be used to advantage in any' engine common city drocarbon engine between the inlet oi thepassage and A the inlet or suctionvalvqoi the engine.-

A carbureter of my proved construction is simple, inexpensive, co anris y mall-forms oigas, gasolene, and oil engines.

21, in acarbureter; a. cylindrical member provided with an Interior-1y arranged spiral passageway, means whereby oil is ;discharged :into

prises a number of parts,

adjusted, and is adaptedto. be used I r p the cylindrical. member in front of, '4 the-spiral passageway, means whereby the discharge of oil r into the cylindrical member is regulated. and an adjustable member arranged beneath the oil inlet to receiu: the excess discharge of oil: substantially as specified.

2. In a carbnreter. a cylindrical member, a spirally arranged flange integral with the interior of said cyliu-' drleal' member, a hydrocarbon inlet arranged in the cylindrical member in front of the flange, and a vertically adjustable member arr.-1nged in the cylindrical member beneath the hydrocarbon inlet for receiving any excess hydrocarbon delivered to the front of the cylindrical member.

3. In a carlmreter, an open ended cylindrical membe a spirally arranged flange integral with the cylindrical member on the interior thereof to form a spiral passageway thrflnzh the gr ater portion of the cylindrical mem- 1 bur. an oil inlet Valve arranged in 101) of lhe v,\'li|ulri'w member in 'l'runt at the spirally :ll'ldlluml flange. a svrc-v'; threaded member operating through the bulb-m ml [incylindrical member below the oil inlet. and there bein: a rece to receive the excess of oil from the oil inlet valve.

In testimony whereof, I have. signed my name io-lbis specification. in presence of two subscribing witnesses.

WILLIAM 1-. lm'rllli.

Witnesses M. 1', SMITH, .Ionx C. IIIGDON.

5 formed in the top of the screw lhreaded member 20 

